6665367 has 4 divisors (see below), whose sum is σ = 8887160. Its totient is φ = 4443576.

The previous prime is 6665363. The next prime is 6665369. The reversal of 6665367 is 7635666.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 6665367 - 2² = 6665363 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6665363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1110892 + ... + 1110897.

It is an arithmetic number, because the mean of its divisors is an integer number (2221790).

Almost surely, 2^6665367 is an apocalyptic number.

6665367 is a deficient number, since it is larger than the sum of its proper divisors (2221793).

6665367 is a wasteful number, since it uses less digits than its factorization.

6665367 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2221792.

The product of its digits is 136080, while the sum is 39.

The square root of 6665367 is about 2581.7372058364. The cubic root of 6665367 is about 188.1949746498.

Subtracting 6665367 from its reverse (7635666), we obtain a cube (970299 = 99³).

The spelling of 6665367 in words is "six million, six hundred sixty-five thousand, three hundred sixty-seven".